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Finding the Fourth Proportional to 151,733.80, 227,859.90 and 81,749.80

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Solution

The fourth proportional to 151,733.80, 227,859.90 and 81,749.80 is: 122,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,733.80 : 227,859.90 = 81,749.80 : x
  2. Step 2: Convert to fraction form
    151,733.80/227,859.90 = 81,749.80/x
  3. Step 3: Cross multiply
    151,733.80x = 227,859.90 × 81,749.80
  4. Step 4: Simplify right side
    151,733.80x = 18,627,501,253.02
  5. Step 5: Solve for x
    x = 18,627,501,253.02/151,733.80
  6. Step 6: Final answer
    x = 122,764.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.